Rank	Countries/Territories	Count	Percent
1	United States	631	44.1%
2	China	405	28.3%
3	Germany	160	11.2%
4	Japan	46	3.2%
5	France	35	2.4%
6	Netherlands	27	1.9%
7	India	16	1.1%
8	Singapore	15	1%
9		13	0.9%
10	Norway	11	0.8%
11	Russia	7	0.5%
12	Australia	7	0.5%
13	Iran, Islamic Republic of	6	0.4%
14	Cyprus	6	0.4%
15	Malaysia	5	0.3%
16	Argentina	4	0.3%
17	Canada	4	0.3%
18	Cuba	3	0.2%
19	Belgium	3	0.2%
20	Ireland	3	0.2%
21	Italy	2	0.1%
22	Colombia	2	0.1%
23	Mauritius	2	0.1%
24	Korea, Republic of	2	0.1%
25	Latvia	2	0.1%
26	Poland	2	0.1%
27	New Zealand	2	0.1%
28	Taiwan	2	0.1%
29	United Kingdom	2	0.1%
30	South Africa	1	0.1%
31	Switzerland	1	0.1%
32	Romania	1	0.1%
33	Mongolia	1	0.1%
34	Egypt	1	0.1%
35	Hong Kong	1	0.1%